USGS: GEOMORPHOLOGY and SEDIMENT TRANSPORT - River Mechanics Central Region Research, Water Resources Division, US Geological Survey
	Current  Research Activities:
	In Situ determination of particle friction angles of fluvial gravels Data Files Referenced in Water Resources Research Publication Grand Canyon Beach Evolution, Grand Canyon, Arizona Grand Canyon Beach Evolution Animation, Grand Canyon, AZ (requires Java 1.0) Digital Elevation Files by location Downstream Sediment Sorting, Antarctica